DAZ1

Last updated
DAZ1
Identifiers
Aliases DAZ1 , DAZ, SPGY, deleted in azoospermia 1
External IDs OMIM: 400003 HomoloGene: 88435 GeneCards: DAZ1
Orthologs
SpeciesHumanMouse
Entrez
Ensembl
UniProt
RefSeq (mRNA)

NM_004081
NM_001388496

n/a

RefSeq (protein)

NP_004072

n/a

Location (UCSC) Chr Y: 23.13 – 23.2 Mb n/a
PubMed search [2] n/a
Wikidata
View/Edit Human

Deleted in azoospermia 1, also known as DAZ1, is a protein which in humans is encoded by the DAZ1 gene. [3] [4]

Contents

Function

This gene is a member of the DAZ gene family and is a candidate for the human Y-chromosomal azoospermia factor (AZF). Its expression is restricted to pre-meiotic germ cells, particularly in spermatogonia. It encodes an RNA-binding protein that is important for spermatogenesis. Four copies of this gene are found on chromosome Y within palindromic duplications; one pair of genes is part of the P2 palindrome and the second pair is part of the P1 palindrome. Each gene contains a 2.4 kb repeat including a 72-bp exon, called the DAZ repeat; the number of DAZ repeats is variable and there are several variations in the sequence of the DAZ repeat. Each copy of the gene also contains a 10.8 kb region that may be amplified; this region includes five exons that encode an RNA recognition motif (RRM) domain. This gene contains three copies of the 10.8 kb repeat. However, no transcripts containing three copies of the RRM domain have been described; thus the RefSeq for this gene contains only two RRM domains. [3]

Interactions

DAZ1 has been shown to interact with DAZAP2, [5] DAZL [5] [6] and DAZ associated protein 1. [5]

Related Research Articles

David C. Page is an American biologist and professor at the Massachusetts Institute of Technology (MIT), the director of the Whitehead Institute, and a Howard Hughes Medical Institute (HHMI) investigator. He is best known for his work on mapping the Y-chromosome and on its evolution in mammals and expression during development. He was cited by Bryan Sykes in Adam's Curse: A Future Without Men.

Y linkage Traits produced by genes located on the Y chromosome

Y linkage, also known as holandric inheritance, describes traits that are produced by genes located on the Y chromosome. It is a form of sex linkage.

Azoospermia Medical condition

Azoospermia is the medical condition of a man whose semen contains no sperm. It is associated with male infertility, but many forms are amenable to medical treatment. In humans, azoospermia affects about 1% of the male population and may be seen in up to 20% of male infertility situations in Canada.

Y chromosome microdeletion(YCM) is a family of genetic disorders caused by missing genes in the Y chromosome. Many men with YCM exhibit no symptoms and lead normal lives. It is present in a significant number of men with reduced fertility. Reduced sperm production varies from oligozoospermia, significant lack of sperm, or azoospermia, complete lack of sperm.

Azoospermia factor (AZF) is one of several proteins or their genes, which are coded from the AZF region on the human male Y chromosome. Deletions in this region are associated with inability to produce sperm. Subregions within the AZF region are AZFa, AZFb and AZFc. AZF microdeletions are one of the major causes of male infertility for azoospermia and severe oligozoospermia males. AZF is the term used by the HUGO Gene Nomenclature Committee.

DAZL

Deleted in azoospermia-like is a protein that in humans is encoded by the DAZL gene.

USP9Y Protein-coding gene in the species Homo sapiens

Ubiquitin specific peptidase 9, Y-linked , also known as USP9Y, is an enzyme which in humans is encoded by the USP9Y gene. It is required for sperm production. This enzyme is a member of the peptidase C19 family and is similar to ubiquitin-specific proteases, which cleave the ubiquitin moiety from ubiquitin-fused precursors and ubiquitinylated proteins.

DAZ3 Protein-coding gene in the species Homo sapiens

Deleted in azoospermia protein 3 is a protein that in humans is encoded by the DAZ3 gene.

DAZ2 Protein-coding gene in the species Homo sapiens

Deleted in azoospermia protein 2 is a protein that in humans is encoded by the DAZ2 gene.

DAZ associated protein 1 Protein-coding gene in the species Homo sapiens

DAZ-associated protein 1 is a protein that in humans is encoded by the DAZAP1 gene.

PUM2

Pumilio homolog 2 is an RNA-binding protein that in humans is encoded by the PUM2 gene.

40S ribosomal protein S4, Y isoform 1 Protein-coding gene in the species Homo sapiens

40S ribosomal protein S4, Y isoform 1 is a protein that in humans is encoded by the RPS4Y1 gene.

RNA binding motif protein, Y-linked, family 1, member A1 Protein-coding gene in the species Homo sapiens

RNA-binding motif protein, Y chromosome, family 1 member A1/C is a protein that in humans is encoded by the RBMY1A1 gene.

CDY1 Protein-coding gene in the species Homo sapiens

Testis-specific chromodomain protein Y 1 is a protein that in humans is encoded by the CDY1 gene.

SYCP3

Synaptonemal complex protein 3 is a protein that in humans is encoded by the SYCP3 gene. It is a component of the synaptonemal complex formed between homologous chromosomes during the prophase of meiosis.

BOLL

Protein boule-like is a protein that in humans is encoded by the BOLL gene.

DAZAP2

DAZ-associated protein 2 is a protein that in humans is encoded by the DAZAP2 gene.

DZIP1

Zinc finger protein DZIP1 is a protein that in humans is encoded by the DZIP1 gene.

The DAZprotein family is a group of three highly conserved RNA-binding proteins that are important in gametogenesis and meiosis. Therefore, mutations in the genes that encode for the DAZ proteins can have detrimental consequences for fertility.

Renee Reijo Pera Stem cell biologist

Renee Reijo Pera is a stem cell biologist and the President of the McLaughlin Research Institute in Great Falls, MT. She previously served as Vice President of Research and Economic Development, for more than 8 years at the California Polytechnic State University and at Montana State University. Reijo Pera's research focuses on human development and disease, in particular, on the development and differentiation of somatic and germ cell lineages and neurodegenerative diseases such as Parkinson's disease and also infertility in men and women.

References

  1. 1 2 3 GRCh38: Ensembl release 89: ENSG00000188120 - Ensembl, May 2017
  2. "Human PubMed Reference:". National Center for Biotechnology Information, U.S. National Library of Medicine.
  3. 1 2 "Entrez Gene: DAZ1 deleted in azoospermia 1".
  4. Reijo R, Lee TY, Salo P, Alagappan R, Brown LG, Rosenberg M, Rozen S, Jaffe T, Straus D, Hovatta O (Aug 1995). "Diverse spermatogenic defects in humans caused by Y chromosome deletions encompassing a novel RNA-binding protein gene". Nature Genetics. 10 (4): 383–93. doi:10.1038/ng0895-383. PMID   7670487. S2CID   2917750.
  5. 1 2 3 Tsui S, Dai T, Roettger S, Schempp W, Salido EC, Yen PH (May 2000). "Identification of two novel proteins that interact with germ-cell-specific RNA-binding proteins DAZ and DAZL1". Genomics. 65 (3): 266–73. doi:10.1006/geno.2000.6169. PMID   10857750.
  6. Ruggiu M, Cooke HJ (Jul 2000). "In vivo and in vitro analysis of homodimerisation activity of the mouse Dazl1 protein". Gene. 252 (1–2): 119–26. doi:10.1016/S0378-1119(00)00219-5. PMID   10903443.

Further reading